Temper Mechanical Air & Heat repairs air conditioners in Richmond, TX and across Fort Bend County. Most repairs are done the same day, and emergency calls are answered 24/7. Our NATE certified technicians find the actual fault, show you a written price before any work starts, and fix most problems in one visit.
A few causes take two minutes to rule out and can save you a service call. If none of these fixes it, call us and tell the dispatcher what you already checked. It speeds up the diagnosis.
Make sure it’s set to Cool and at least 3 degrees below the room temperature. If the screen is blank, replace the batteries.
Your AC usually has two breakers in the panel, one for the indoor unit and one for the outdoor unit. Reset a tripped breaker once.
If it trips again, leave it off and call us. A breaker that keeps tripping points to an electrical fault.A clogged filter chokes airflow and can freeze the indoor coil. Swap it for a clean one.
Set the thermostat to Off and the fan to On for a few hours so the ice melts.
Running Cool on a frozen system can damage the compressor.Many Richmond homes have the indoor unit in the attic. When the condensate drain clogs, a safety switch shuts the AC off to keep water out of your ceiling.
If the pan under the unit holds water, the drain line is blocked. Turn the system off and call.For symptom guides, see why your AC is blowing warm air and what to do when your AC won’t turn on.
Most no cooling calls in Fort Bend County come down to a handful of parts. Here’s what each one looks like from inside your house.
| Problem | What you notice | How we fix it |
|---|---|---|
| Failed capacitor | Outdoor fan won’t spin, unit hums, AC won’t start | Replace the capacitor, then test the fan and compressor motors |
| Burned contactor | Outdoor unit won’t start, or won’t shut off | Replace the contactor and check the wiring for heat damage |
| Clogged condensate drain | Water in the pan, AC shuts off, ceiling stain | Clear and flush the line, test the safety float switch |
| Refrigerant leak | Warm air, ice on the lines, long run times, higher bills | Locate the leak, repair it, recharge to the manufacturer’s spec |
| Frozen evaporator coil | Ice on the indoor unit, weak airflow | Thaw the coil, then fix the cause (airflow or low refrigerant) |
| Dirty condenser coil | AC runs nonstop, power bill climbs | Clean the outdoor coil, check refrigerant pressures |
| Blower motor failure | Outdoor unit runs but no air from the vents | Replace the motor or its capacitor |
| Thermostat or control board fault | Blank screen, AC turns on and off every few minutes | Repair or replace, check low voltage wiring |
| Compressor failure | Loud start, tripped breaker, warm air | Test the compressor, then lay out repair and replacement costs side by side |
If your AC smells musty, burnt or like rotten eggs, read what each AC smell means. A burning smell means turn the system off at the breaker and call.
Richmond is hard on air conditioners. Here’s what we see every summer, and what we check for on every repair visit.
Summers here hold above 95 degrees with heavy humidity, and most systems run from spring well into October. More run hours means more wear on capacitors, contactors and fan motors. Heat is the number one reason capacitors fail.
On a humid day your AC pulls gallons of water out of the air. That water carries dust and algae that slowly clog the condensate line.
Most two story homes in Pecan Grove, Long Meadow Farms, Harvest Green, Veranda and Aliana have the indoor unit in the attic, where summer temperatures run far above the outdoor reading. That heat stresses electrical parts and can make ductwork sweat.
If your upstairs never cools down, see our guide to hot spots in two story Richmond homes and why ductwork sweats.
Fort Bend County sits on Beaumont Clay, which swells when it’s wet and shrinks during dry spells. Over time that movement can tilt the pad under your outdoor unit. A tilted unit strains the refrigerant line connections and can throw off the drain line slope.
Summer thunderstorms and grid outages can damage control boards, contactors and compressors. If your AC quits after a storm, don’t keep resetting it. Call for a check before the problem spreads to a bigger part.
Richmond sits along the Brazos River. If water ever reached your outdoor unit, keep the system off until a technician has checked the electrical parts.
We give you an arrival window, usually the same day if you call in the morning.
The technician checks the electrical parts, refrigerant pressures, airflow, drain line and thermostat. A failed capacitor is often a symptom of a weak motor, so we don’t stop at the first bad part.
We show you photos of what we found and give you repair options at a fixed price. Nothing starts until you approve it.
Our trucks carry the common parts, so most repairs take 1 to 3 hours and finish in one visit.
We measure the temperature drop across the coil, check the motor amp draw and confirm the drain is flowing.
Most AC repairs in Richmond cost between $150 and $600. Major repairs such as a compressor or coil replacement run $800 to $2,800. The diagnostic visit is $75 to $150, and it’s credited toward the repair if you go ahead on the same visit.
| Repair | Typical price range |
|---|---|
| Diagnostic and service call | $75 to $150 (credited toward the repair) |
| Capacitor replacement | $150 to $400 |
| Contactor replacement | $150 to $300 |
| Condensate drain clearing | $75 to $200 |
| Thermostat replacement | $150 to $400 |
| Condenser coil cleaning | $100 to $250 |
| Evaporator coil cleaning | $150 to $400 |
| Refrigerant leak repair and recharge | $250 to $1,500 |
| Blower motor replacement | $400 to $900 |
| Evaporator coil replacement | $800 to $2,500 |
| Compressor replacement | $800 to $2,800 |
What moves the price: the part, the refrigerant your system uses, attic access and after hours calls.
New customers can use our $50 off any HVAC repair offer, and bigger jobs qualify for $100 off major repairs.
For a full breakdown, see our 2026 Richmond AC repair price guide.
Get a free quote personalized to you.
Your R-410A system can still be repaired and recharged. That isn’t changing.
Since January 1, 2025, new home AC equipment is built for lower impact refrigerants such as R-454B and R-32. These can’t be added to an R-410A system. They aren’t a direct swap.
Production is being cut back under federal rules, so refrigerant repairs on R-410A systems will cost more each year.
R-22 hasn’t been produced since 2020, and recharges rely on recovered supply. Most systems installed before 2010 use it. A large leak on an R-22 system is usually the point where replacement makes more sense than repair.
We’ll tell you which refrigerant your system uses and what that means for the cost before you decide anything.
Repair usually makes sense when your AC is under about 10 years old and the repair costs less than half the price of a new system.
Many systems in newer neighborhoods like Harvest Green, Veranda and Long Meadow Farms are still within the manufacturer’s parts warranty, and many brands cover parts for up to 10 years when the system was registered. Send us your model and serial number and we’ll check before we quote.
If replacement is the smarter move, we’ll explain why and show you the numbers.
See when to repair and when to replace your HVAC system or get a quote for AC installation in Richmond, TX.
We answer emergency AC calls 24/7 at
(346) 485-8142While you wait, close the blinds on sunny windows, run the ceiling fans, keep exterior doors shut and spend time on the lowest floor.
Don’t keep restarting the system, because each restart can push a failing part further.
If your AC quit after dark, our guide on what to do when the AC stops working at night walks you through the first hour. For more, see our emergency AC repair guide.
We repair every major brand, including
We’re an authorized Trane dealer and a Day & Night dealer.
If a part has to be ordered, we tell you how long it will take and what we can do to keep your home cool in the meantime.
Our shop is on FM 762 in Richmond, so most of our service area is a short drive away.
In Richmond we work in
If you run a store, office, clinic or restaurant, our commercial team repairs rooftop units, split systems and larger mechanical equipment, and we offer scheduled maintenance programs to prevent downtime.
For project bids, contact Dave Charlemagne, Project Estimator, at
(832) 272-8698Our recent commercial mechanical projects include work for
Our shop is at 6115 FM 762 in Richmond, not a call center two counties away.
We hold a TDLR air conditioning license ([TACLA #]) and a Texas Master Plumber license (MPL #45322). We’re NATE certified, BBB accredited and MBE certified.
If the condensate drain ties into your plumbing or the water heater sits next to the air handler in the attic, the same company can fix both.
Photos of the problem and a written price come before any work.
Our $99 AC tune up and HVAC maintenance plans catch weak capacitors and clogged drains before they leave you without cooling in August.
Read what customers say on our testimonials page or see recent jobs.
Call Temper Mechanical Air & Heat at (346) 485-8142. We’re based at 6115 FM 762 in Richmond, offer same day AC repair in most cases and take emergency calls 24/7 across Richmond, Rosenberg, Sugar Land, Katy and the rest of Fort Bend County.
Most AC repairs in Richmond cost $150 to $600. A capacitor runs $150 to $400, a clogged drain $75 to $200, and a refrigerant leak repair $250 to $1,500. Compressor or coil replacement costs $800 to $2,800. Our $75 to $150 diagnostic fee is credited toward the repair.
Most calls get a same day appointment when you call in the morning. Emergency calls are answered 24/7.
The most common causes are a dirty air filter, a frozen indoor coil, a failed capacitor that stops the outdoor fan, low refrigerant from a leak, and a dirty outdoor coil. Change the filter and check for ice first. If the air is still warm, call for a diagnosis. See 9 hidden reasons your AC isn’t cooling.
Almost always because the condensate drain line is clogged with algae and dust, so water backs up into the pan. In attic units it can soak the ceiling. Turn the AC off and have the line cleared and the float switch tested. If your system uses a pump, see why condensate pumps stop working.
Yes. Existing R-410A systems can still be legally repaired and recharged. New systems now use refrigerants such as R-454B and R-32, and R-410A will keep getting more expensive as production drops, so refrigerant repairs on older systems will cost more over time.
It depends on the repair. A capacitor, contactor or drain repair on a 12 year old system is usually worth it. A compressor, coil or major refrigerant leak usually isn’t, especially on an R-22 system. We give you both prices so you can compare.
Ask for the company’s TDLR license number, which starts with TACLA or TACLB, and look it up on the Texas Department of Licensing and Regulation website. Make sure the status shows as active. Temper Mechanical’s license is [TACLA #]. Here’s our checklist for choosing an HVAC contractor.
At least once a year, ideally in spring before the heat arrives. Because the cooling season here is so long, a second check in late summer helps if you have pets, allergies or an older system. See signs your system needs a tune up.
Our technicians are on the road across Richmond and Fort Bend County every day.
, and ask about current specials.
